Error on specific warnings

This also skips the RedirectsPanel's deprecation warning from raising errors.

Author: tim-schilling

docs/changes.rst

@@ -14,7 +14,8 @@ Pending
 * Dropped support for the Python 3.9, it has reached its end of life date.
 * Toggle tracking the toolbar's queries when using
   ``debug_toolbar.store.DatabaseStore`` with ``SKIP_TOOLBAR_QUERIES``.
-* Updated tox configuration to treat all warnings as errors.
+* Updated tox configuration to treat ``DeprecationWarning``,
+  ``ResourceWarning``, and ``PendingDeprecationWarning`` as errors.
 
 6.1.0 (2025-10-30)
 ------------------

tox.ini

@@ -43,7 +43,11 @@ passenv=
     GITHUB_*
 setenv =
     PYTHONPATH = {toxinidir}
-    PYTHONWARNINGS = default,ignore:The RedirectsPanel is deprecated:DeprecationWarning
+    PYTHONWARNINGS =\
+        error::ResourceWarning,\
+        error::DeprecationWarning,\
+        error::PendingDeprecationWarning,\
+        ignore:The RedirectsPanel is deprecated:DeprecationWarning
     DB_NAME = {env:DB_NAME:debug_toolbar}
     DB_USER = {env:DB_USER:debug_toolbar}
     DB_HOST = {env:DB_HOST:localhost}